- Following the order of operations, we do parenthesis first.
- Multiply out the value against the parenthesis.
- This leaves us with 20 over 20. 20 goes into 20 only 1 time, so our final answer is 1.
Answer:
See explanation
Step-by-step explanation:
Ana started the work nicely by multiplying out factors to get:\
She multiplied correctly using difference of two squares to get:
Unfortunately: She made a mistake in multiplying she mistakenly got instead of . <em>She left out the coefficient of 2.</em>
Therefore the second step should have been:
The next step will now be:
This simplifies to
4(x - 7) + 12 = 20
4(x) - 4(7) + 12 = 20
4x - 28 + 12 = 20
4x - 16 = 20
+ 16 + 16
4x = 36
4 4
x = 9
Answer:
63.59
Step-by-step explanation:
If the perimeter is 32.13, that means it is equal to
2r + 2πr/4 = 32.13
Solving this for r we get 9
Now, we can find the area, which is 3.14*r^2 / 4. Assuming pi to be 3.14 again, we get 63.585. Rounding this to the nearest hundredth, we get 63.59
Answer:Each of the points and the y-intercept of their perpendicular bisectors
Step-by-step explanation: